The repertory of soprano Sunhae Im focuses on early music, and she has worked with leading conductors in the field, including Philippe Herreweghe and René Jacobs. Her recordings, however, are a varied lot that includes music as far forward in time as Liszt and Mahler, as well as American popular song. In 2002, Im released her debut album, Haydn: Cantates pour les Esterházy. Her repertory also extends to popular music; she issued an album of popular songs, The Man I Love, and appeared in several Korean productions of the Maury Yeston musical Phantom. In 2023, Im was heard with baritone Thomas Hampson on a recording of orchestral songs by Liszt.